Symptoms of nausea and vomiting during menstruation are signs of menstrual syndrome. The causes of PMS are mainly related to the high estrogen level in the body and the relatively insufficient progesterone level, or caused by the body’s low sensitivity to progesterone. Vitamin B6 deficiency in the body or excessive mental stress or mood swings can also cause or aggravate the manifestations of PMS. The treatment of PMS is mainly symptomatic. Patients should relax and avoid excessive stress and mental tension. Exercise properly to enhance physical fitness. Pay attention to a diversified diet and balanced nutrition, but do not eat too greasy and spicy food. Appropriate vitamins and trace elements can be supplemented to improve the physical condition.